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Archon Robotics introduced Anchor 1, a whole-body controller for humanoid manipulation. It turns sparse human targets (pelvis, wrists, ankles) into precise, stable robot motion, skipping online joint-space retargeting to avoid a common source of error. It also separates motion encoding from feedback correction, pairing accurate tracking with smooth movement.... show more
14,929 views • 3 days ago •via X (Twitter)
8 Comments

technical blog

Whole body manipulation is one of the hardest challenges for humanoid robots

skipping joint-space retargeting is smart, a lot of teleop error hides there. but pelvis/wrist/ankle targets are still kinematic. in sanding or deburring the same wrist path gives a clean edge or a gouge depending on how hard you push. any plan for force targets in the loop?

I like the room sparse targets could leave for a robot’s own proportions. The same reach can call for quite different joint angles in a different body.

bonus of splitting encoding from feedback correction: the correction term tells you where operator targets were infeasible

@Scobleizer ancohr 1 may struggle with latency in high dof environments still

Good to see improvements in the biggest challenges in humanoids

skipping the retargeting step makes sense, that's where a lot of the jitter comes from. any word on what robot they tested it on?
